<p class="task-tit margin-b15">{$operator} 更改了任务内容</p>
<p class="old-text margin-b15">{task_helper::strip_html($log_detail_info['content']['old_value'], 500)}</p>
<p>修改为:</p>
<p class="new-text margin-b15">{task_helper::strip_html($log_detail_info['content']['new_value'], 500)}</p>